package eu.dnetlib.uoaadmintools.controllers;

import eu.dnetlib.uoaadmintools.dao.CuratorDAO;
import eu.dnetlib.uoaadmintools.entities.curator.Curator;
import eu.dnetlib.uoaadmintools.entities.curator.CuratorResponse;
import eu.dnetlib.uoaadmintoolslibrary.handlers.utils.RolesUtils;
import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.web.bind.annotation.*;

import java.util.ArrayList;
import java.util.List;
import java.util.Optional;

@RestController
@CrossOrigin(origins = "*")
public class CuratorController {
    private final Logger log = Logger.getLogger(this.getClass());

    @Autowired
    private CuratorDAO curatorDAO;

    @Autowired
    private RolesUtils rolesUtils;

    /**
     * Return a list with curator. If list of emails does not existed return all curators, else return
     * curators based on given list.
     *
     * @param emails
     * @return
     */
    @RequestMapping(value = "/curator", method = RequestMethod.GET)
    public List<CuratorResponse> getCurators(@RequestParam(required = false) Optional<String> emails) {
        List<CuratorResponse> curators = new ArrayList<>();
        if(emails.isPresent()) {
            for(String email: emails.get().split(",")) {
                Curator curator = curatorDAO.findByEmail(email);
                if(curator != null) {
                    curators.add(new CuratorResponse(curator));
                }
            }
        } else {
            for(Curator curator: curatorDAO.findAll()) {
                curators.add(new CuratorResponse(curator));
            }
        }
        return curators;
    }

    /**
     * Return a Curator with the given id.
     *
     * @param id
     * @return
     */
    @PreAuthorize("isAuthenticated()")
    @RequestMapping(value = "/curator/{id}", method = RequestMethod.GET)
    public Curator getCuratorById(@PathVariable String id) {
        return curatorDAO.findById(id);
    }

    /**
     * Create or update a curator, base on Curator object given on Request Body.
     *
     * @param curator
     * @return
     */
    @PreAuthorize("isAuthenticated()")
    @RequestMapping(value = "/curator", method = RequestMethod.POST)
    public Curator insertCurator(@RequestBody Curator curator) {
        String aaiId = rolesUtils.getAaiId();
        curator.setId(aaiId);
        return curatorDAO.save(curator);
    }


    /**
     * Delete all curators if list of emails does not exist or curators based on given list.
     *
     * @param emails
     */
    @PreAuthorize("hasAnyAuthority(@AuthorizationService.PORTAL_ADMIN)")
    @RequestMapping(value = "/curator", method = RequestMethod.DELETE)
    public void deleteCurators(@RequestBody(required = false) Optional<List<String>> emails) {
        if(emails.isPresent()) {
            for(String email: emails.get()) {
                Curator curator = curatorDAO.findByEmail(email);
                if(curator != null) {
                    curatorDAO.delete(curator.getId());
                }
            }
        } else {
            curatorDAO.deleteAll();
        }
    }

}